【连续测量土壤CO2通量的一种新方法】Sofia De Gregorio Marco Camarda Santo Cappuzzo Sergio Gurrieri.An innovative method for continuous measurement of soil CO2flux.Chemical Geology 2013341: 102–109
Abstract
Herein we present a method for continuous measurement of soil CO2 flux that is completely new and distinct from existing instruments. The foremost difference is that instead of using an infrared gas analyser (IRGA) the new device measures soil CO2 flux by means of a simple pressure sensor measuring pressure transients inside a closed polymeric tube inserted into the soil. This allows continuous measurements even in soil placed in environments that could potentially damage IRGA. In addition due to the innovative operating principle measurements of soil CO2 flux can be effortlessly performed also in strongly harsh weather conditions. Theoretical equations were derived for calculating soil CO2 flux solely using measured transient values. The reliability of the equations was rigorously tested with a variety of experiments. Continuous measurements over four months acquired in a high-emission area on the Island of Vulcano compared favourably with the data obtained using an established method.
【泰国旱作农业能源消耗和CO2排放】Peeyush Soni Chakkrapong Taewichit Vilas M. Salokhe. Energy consumption and CO2emissions in rainfed agricultural production systems of Northeast Thailand.Agricultural Systems2013 116: 25–36
Abstract
Farm mechanization has been progressively increasing in Thailand for the past decades. Consumption and abuse of energy intensive inputs machinery and agro-chemicals is increasingly propagated into agricultural production systems. Effects of energy intensive input utilization and farm technologies are directly associated especially with farm economic and atmospheri